netdev - Re: [PATCH] netfilter: ctnetlink: fix race between delete and timeout expiration

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Message-Id: <20120317.014739.1582874215726456340.davem@davemloft.net>
Date:	Sat, 17 Mar 2012 01:47:39 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	pablo@...filter.org
Cc:	netfilter-devel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH] netfilter: ctnetlink: fix race between delete and
 timeout expiration

From: pablo@...filter.org
Date: Fri, 16 Mar 2012 13:00:34 +0100

> From: Pablo Neira Ayuso <pablo@...filter.org>
> 
> Kerin Millar reported hardlockups while running `conntrackd -c'
> in a busy firewall. That system (with several processors) was
> acting as backup in a primary-backup setup.
> 
> After several tries, I found a race condition between the deletion
> operation of ctnetlink and timeout expiration. This patch fixes
> this problem.
> 
> Tested-by: Kerin Millar <kerframil@...il.com>
> Reported-by: Kerin Millar <kerframil@...il.com>
> Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>

Applied, thanks.
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